2001•Journal of Chemical Engineering of Chinese UniversitiesRequires access
Study on Supercritical Antisolvent Precipitation of Polyethylene Glycol
Jiang Chunyue
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Abstract
On the basis of study on the experiment of supercritical antisolvent precipitation of polyethylene glycol, the optimal precipitation conditions were obtained: the temperature 298K, pressure 8MPa, density of antisolvent CO2 0.778 gL-1, concentration of the glycol/acetone solution 5~15 gL-1, and throughput of the solution 1~5mLmin-1. The process is operated continuously. The average size of the particles obtained in this experiment is less than 0.1 mm, and the particle size distribution is in the range of 0.033 to 0.38 mm.